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What is life

Chapter 1 Lesson 1

Organism A living thing.
Stimulus Any change in environment that can make an organism react in a way.
Sexual Reproduction A reproductive process that involves parents combining the genetics to make a new organism.
Controlled Experience An experiment in which only one variable is controlled at a time.
Cell The basic unit and structure of living things.
Response An action or change in behavior that occurs as a result of stimulus.
Unicellular Made of one single cell.
Development The process of change that occurs during an organism's life to produce a more complex organism.
Spontaneous Generation The mistaken idea that living things arise from nonliving sources.
Autotroph An organism that is able to capture energy from sunlight or chemicals and use it to produce its own food.
Multicellular Consisting of many cells.
Asexual Reproduction A reproductive process that involves only one parent and the offspring is genetically identical to the parent.
Heterotroph An organism that cannot make its own food and gets food by consuming other living things.
Metabolism The combination of chemical reactions through which an organism builds up or breaks down materials.
Homeostasis The condition in which an organism's internal environment is kept stable in spite of the changes in the external environment.
Created by: 0003571



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